AirHint found the following cheapest return flights from Boston (BOS) to Zurich (ZRH) in December 2026 (see full year).
Return flights
| 09 Dec - 16 Dec | Iberia | ||
| 09 Dec - 16 Dec | SWISS | direct | |
| 13 Dec - 27 Dec | Iberia | ||
| 16 Dec - 30 Dec | TAP | ||
| 16 Dec - 30 Dec | SWISS | direct | |
| 13 Dec - 27 Dec | SWISS | direct |
Also check the deals for one-way flights from Boston to Zurich in December.
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